Method and mold apparatus for molding a padding member
US4608213A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 31, 1984 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | May 31, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/07
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A mold for producing a padding member having side by side portions of different hardnesses integral with each other, and a method of producing the padding member using such mold. The mold has a lower half with partition walls movably extending upwardly through the bottom of the lower mold half into the interior of the lower mold half to define a plurality of cavities into which moldable materials of which the padding member is to be formed and having different hardnesses from each other can be contained. The upper mold half is placed over the lower mold half, and has pressing members extending downwardly which engage the edges of the partition walls and force the partition walls downwardly. The pressing members are spaced from each other along the partition walls, so that the materials on the opposite sides of the partition walls can contact each other and, while molding is being carried out, become integrally joined to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.